Patrick s



P. S. RYAN.

MILK COOLER.

(No Model.) l

No. 430,545. Patented June 17, 1890.

fWa'zeJJeS M www @MW UNITED STATES PATENT OFFICE.

y PATRICK S. RYAN, OF RUTLAND, VERMONT.

MILK-COOLER.

SPECIFICATION forming part of Letters Patent No. 480,545, dated June 17,1890.

Application led February 25, 1890. Serial No. 341,657. (No model.)

To all whom it may concern:

Be it known that I, PATRICK S. RYAN, of Rutland, in the county ofRutland and State of Vermont, have invented a new and useful Improvementin lWIilk-Aerators; and I do hereby declare that the following is afull, clear, and exact description of the saine.

Hy invention relates to the cooling and aeration of milk, and has forits object the removal of all animal heat and odor from the milk byexposing` it to the air .as the milk s poured into the cans in which itis to be transported to the place of use. Especially is my inventiondesirable in cooling milk which is to be used in creameries orcheesefactories.

My invention consists of a cooling-plate having brackets extending fromits edges to engage with the rim of the can-mouth, so that the platewill be within the mouth, and

, will extend to near the can-sides.

In the accompanying drawings, Figure l is a sectional View of theinvention as applied to a milk-can. Fig. 2 is a plan view.

The cans may be of any ordinary construction, such as are used for.transporting milk, and my improved cooling` device is adapted to besuspended Within the mouth of the can by supporting-brackets a, whichextend upwardly to engage the rim of the can, and which are suitablyconnected to the coolingsurface. This cooling surface is approximatelycone-shaped, though it may be flat, and is composed, preferably, o fmetal, being of circular form in plan, and of such size as to fit withinthe can, so as to cause the milk as it flows over its surface to rundown the sides of the can, this aiding to retard the flow of the milk.This cooling-surface is shown at A, and it has secured centrallythereof, inclosing its apex, a strainer, which has flaring walls, asshown at B. This strainer acts as a receiver for the milk which ispoured therein. Arranged concentrically with the' strainer is arim orflange projecting from the surface of the part A, and while I have shownbut one of these rims, as at b, I desire it to be understood that I mayuse as many as may be found desirable, the number depending largely uponthe size of the cooling-surface and the amount of milk which is to becooled. It will be seen that as the milk is poured into the strainer vitpasses through the openings in the walls thereof, being perfectlystrained, and ows down upon all sides over the inclined surface, itsflow being retarded by the rim. This rim dams the milk and causes it toflow over the edge in a thin sheet, which exposes it to the coolingaction of the air, and thel milk then again flows over the surface ofthe side of the rim to the can, or over the other rims, if more than onebe used. The flow ofthe milk is thus retarded and cooled by its longexposure to the air and byreason of its flow in thin sheets over theinclined surface and the rim or rims.

By extending the brackets upwardly and outwardly from the edge of thecooling-plate said plate will be supported with its edge below thecan-rim and within the mouth of the can. v

I claim as -my invention- In combination, a cooling-plate A, havingafunnel and a ring b, attached thereto, said plate having bracketsextending upwardly and outwardly from its edge, whereby said plate willbe supported within the mouth of the can and below the rim thereof, witha space between its edge and the can-side, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

PATRICK S. RYAN. lVitnesses:

CHARLES II. JOYCE, C. W. MUssEY.

